VK-700 Multi-Threat Defense Filter

Smoke and Carbon Monoxide Advanced filtration against organic solvents, acid gases, ammonia, and more Durable, impact-resistant construction for harsh environments Superior comfort with minimal breathing resistance for extended wear Compact and Lightweight: 450 g, 95 mm in height, and 110 mm in diameter for easy integration with existing gear. Extended Service Life: 10-year shelf life when properly stored between -5°C and +30°C and at humidity levels below 80%. Superior Filtration Efficiency: Maximum penetration values of just 0.05% for both solid and liquid aerosols. Enhanced Mercury Vapor Protection: Rated for 100 hours of mercury vapor filtration, surpassing many competitors. VK-700 Type and Gas Protection  Type Test Gas Dynamic Adsorption Capacity (g) Breakthrough Concentration Breakthrough Time (min) Concentration of Testing Gas Flow Rate (l/min) A2 Cyclohexane (C₆H₁₂) 35 0.5% >40 17.5 mg/l 30 B2 Chlorine (Cl₂) 35 0.5% >40 15 mg/l 30 E2 Hydrogen Cyanide (HCN) 35 0.5% >40 7.1 mg/l 30 K2 Ammonia (NH₃) 35 0.5% >40 13.3 mg/l 30 Hg Mercury (Hg) 100 h — >170 h 0.1 mg/m³ — NO Nitrogen Oxide (NO) — 0.25% >20 3.1 mg/l 30 NO₂ Nitrogen Dioxide (NO₂) — 0.25% >20 4.8 mg/l 30 CO Carbon Monoxide (CO) 20 0.5% >20 20.24 mg/l 30 SX Phosgene (COCl₂) 20 0.5% >20 12.144 mg/l 30